Title :
Quantum anti-dots in a PPV matrix: physical origins of time-resolved spectral behaviour
Author :
Bakueva, L. ; Musikhin, S. ; Sargent, E.H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada
Abstract :
Modification of the structure and properties of conjugated polymers achieved by embedding wide gap dielectric nanocrystals (antidots) was investigated by means of time-resolved luminescence spectroscopy. Antidots strongly modify the luminescence spectrum of PPV. The temporal evolution of luminescence spectra in polymer-antidot composites reveals a series of characteristic times. The shortest of these are independent of antidot material and describe processes in the polymer matrix; longer times may relate to carrier capture by the nanocrystals
Keywords :
filled polymers; optical polymers; photoluminescence; quantum dots; time resolved spectra; PPV matrix; Y2O3; Y2O3 nanoparticles; characteristic times; conjugated polymers; polymer-antidot composites; quantum antidots; temporal evolution; time-resolved luminescence spectroscopy; time-resolved spectral behaviour; wide gap dielectric nanocrystals; Atmospheric measurements; Dielectric materials; Embedded computing; Luminescence; Nanocrystals; Photonic band gap; Physics computing; Polymers; Spectroscopy; Wavelength measurement;
Conference_Titel :
Nanotechnology, 2001. IEEE-NANO 2001. Proceedings of the 2001 1st IEEE Conference on
Conference_Location :
Maui, HI
Print_ISBN :
0-7803-7215-8
DOI :
10.1109/NANO.2001.966462
